If you're feeling good about the market, you're not alone. Take my hand as we go over some of the more uplifting headlines of the week.

1. Jacked be Kindle
There's a new Kindle in town. Amazon.com (NASDAQ:AMZN) introduced the Kindle DX on Wednesday. Its screen, 2.5 times bigger than the regular model, makes it ideal for digital versions of school textbooks, newspapers, and magazines. The model can also automatically flip from portrait to landscape mode, depending on how you hold it.

The $489 sticker is a bit of a downer, considering the mainstream model sells for just $359. However, the brilliant gem in the Kindle DX strategy is that a few major newspapers will begin testing out a digital version of their dailies in markets where they don't provide physical delivery. If readers are willing to pony up for long-term commitment, the newspapers will discount the Kindles.

That's a similar approach to what wireless companies take in subsidizing costly cell phones. Newspaper companies, playing the role of the telcos, can afford to pay for some of the hardware, because digital delivery is far cheaper than printing and delivering a newspaper. The phone maker -- in this case, Amazon -- should be able to move more units at a subsidized price.  

2. Big growth in bigger screens
IMAX (NASDAQ:IMAX) delivered better-than-expected first-quarter results yesterday. Revenue soared 43%, led by the brisk pace of new system installations. IMAX posted a narrower loss than analysts were braced for and confirmed that it's on track for a return to profitability this year.

The future is looking pretty good for the multiplex enhancer. It has dramatically grown its theater base over the past year, and now we're heading into the blockbuster summer season, with Star Trek opening this weekend on IMAX screens. Other big flicks going for the IMAX makeover this summer include the latest installments in the Night at the Museum, Transformers, and Harry Potter franchises.

3. The bid-app spread
Traders with iPhones have a new toy to play with, now that E*Trade (NASDAQ:ETFC) has hit Apple's (NASDAQ:AAPL) App Store. E*Trade Mobile Pro allows iPhone users -- and iPod touch owners with Wi-Fi -- to check on their accounts, transfer balances, get real-time quotes, and perform trades. The app is free, but clearly the commissionable trades are not.

E*Trade is making a great move. Since rolling out a BlackBerry App last summer, it has received 2 million user logins. If that's happening on the corporate-friendly BlackBerry, imagine how popular it will be on the more consumer-friendly iPhone with individual investors. 

4. Latte cleanup, in the ball pit
McDonald's (NYSE:MCD) began marketing the national rollout of its McCafe beverage offerings on Tuesday. Hot and iced coffee beverages have been creeping onto the menu board of the world's largest fast-food chain, but now it's official and complete with its own barista.

As long as Mickey D's doesn't dismantle its Dollar Menu, it can really cash in on its barbell pricing approach. It can still woo the cheapskates with its buck burgers but cater to folks willing to spend a little more for its chicken salads and cappuccinos. Premium coffeehouses will feel some pain in the near term, but the arches will rake in more gold.

5. A Microhoo wedding rumor that's finally worth a bridal registry check
I've never bought into the chatter that Yahoo! (NASDAQ:YHOO) will sell its search business to Microsoft (NASDAQ:MSFT) outright. Yahoo! without search is like the Cleveland Cavaliers without LeBron James.

The new rumor that began making the rounds this week -- courtesy of BoomTown -- is closer to making sense. Supposedly, Yahoo! will populate the Yahoo! and Microsoft platforms with display and paid-search ads, with Microsoft handling the tech side of things and possibly investing in Yahoo! itself.

Even if reality plays itself out in a completely different manner, at least this is the kind of arrangement that won't make your head spin in wonder.